4 Dec
2003
4 Dec
'03
9:23 a.m.
On Thu, 4 Dec 2003, Joe wrote:
Motor Start or Motor Run capacitors can be hard to
find. Even the
companies tht deal with motors and pumps don't ususually carry them.
Fortunately there's a surplus company (Skycraft) here in town (Orlando)
that carries lots of this kind of stuff. If you send me an E-mail with the
dimensions and how it mounts I'll see what I can find.
Joe
Motor start/run capacitors are pretty commonly available at stores
which deal in parts for the appliance an heating & ventilating
trades. They may not be the same size as yours was, and will
likely have spade lug contacts vice soldered, but I'd bet that you
can find something of a suitable rating.
- don
At 03:05 AM 12/4/03 -0500, you wrote:
On Wed, Dec 03, 2003 at 10:48:35PM -0800, vrs
wrote:
(-47.4 C)
Hi,
I've got an electrolytic I pulled from my TU56 drive because it had a big
crusty electrolyte extrusion through the vent plug in the top.
Ewwww.
.... "SPRAGUE 100 MFD 55V - 60CY
A5030". It is 2" in diameter and just
over 4" tall, with two solder lugs on top. I think they are connected to
the drive motors.
Yes. The motor start capacitors.
I have looked for replacement electrolytic, but
they all have way more
capacitance or way more voltage rating, and are nowhere near the right
physical dimensions.
Voltages that are "too high" are no problem. Too low is a big no-no. You
want something with a fairly close capacitance match, because too little
would probably increase the startup time on the motor and might cause issues
if too far off.
Is there a source for exact replacements?
Not that I am aware of.
There are others (David Gesswein?) who have had to replace TU-56 motor caps.
I have not yet had to do so (but it's been years since I fired mine up, since
I've only recently repaird my -8/e PSU). My personal priority would have to
be voltage and capacitance over physical size.
A caveat - these are not filter caps. They are motor start caps (or they
might be "motor run" caps. They will be hard to find an appropriate sub
for.
-ethan
--
Ethan Dicks, A-130-S Current South Pole Weather at 04-Dec-2003 08:00 Z
South Pole Station
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Ethan.Dicks(a)amanda.spole.gov
http://penguincentral.com/penguincentral.html